US 12,245,271 B2
Random access preamble for non-terrestrial network
Chenchen Zhang, Shenzhen (CN); Nan Zhang, Shenzhen (CN); Wei Cao, Shenzhen (CN); Kaibo Tian, Shenzhen (CN); and Zhen Yang, Shenzhen (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Filed by ZTE CORPORATION, Guangdong (CN)
Filed on Mar. 30, 2022, as Appl. No. 17/708,363.
Application 17/708,363 is a continuation of application No. PCT/CN2019/109610, filed on Sep. 30, 2019.
Prior Publication US 2023/0012036 A1, Jan. 12, 2023
Int. Cl. H04W 74/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/004 (2013.01) [H04W 74/0833 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A wireless communication method for use in a wireless terminal, comprising:
transmitting, to a wireless network node, a preamble comprising a plurality of parts,
wherein each of the plurality of parts comprises at least one sub-preamble and the sub-preambles in the plurality of parts are generated based on a plurality of roots,
wherein the sub-preambles in the plurality of parts are generated based on different cyclic shift lists,
wherein the at least one sub-preamble in each of the plurality of parts is concatenated in the time domain, and
wherein the plurality of parts is transmitted at a plurality of random access channel (RACH) occasions, and the wireless communication method further comprises:
receiving, from the wireless network node, occasion configuration information of indicating the plurality of RACH occasions,
wherein the occasion configuration information indicates:
at least one index offset among the plurality of RACH occasions,
at least one time offset among the plurality of RACH occasions,
at least one frequency offset among the plurality of RACH occasions, or
at least one index entry of a table, wherein the plurality of RACH occasions is pre-defined as the table, and
wherein the plurality of RACH occasions is divided into a plurality of occasion groups corresponding to the plurality of parts.